Up against it, back against the wall, up against the wall is not an enviable position to be in. It means you are not in a good spot, you are in trouble with forces closing in on you. Usually used at work to mean that there is a lot of work to do and it is likely very difficult to achieve a goal.
Yes. It means to be in some trouble or facing a hard decision.
The inability of students to think up their own sentences makes me bang my head against the wall.
pay attention.
It means to stop messing around, follow orders, do what you are suppose to do, or leave.
This isn't an idiom. I'm not sure what it's even supposed to mean. You probably heard some kind of children's slang, which means you'd have to ask them what they meant by it.
Yes. It means to be in some trouble or facing a hard decision.
The inability of students to think up their own sentences makes me bang my head against the wall.
I think you mean "drive someone up the wall," which means to make them so frustrated that they are thinking of climbing the walls to escape.
It means that you drive them up to a wall in a vehicle. I believe you mean the idiom phrase "drive you up the wall," which means to frustrate you to the point where you feel like climbing up the wall to escape from them.
The idiom 'driving me up the wall' means that something is annoying or exasperating you. It originates from a person trying to escape something by literally climbing up the wall.
It means things are trustworthy.
Back Up Against the Wall was created in 1973-02.
An outfielder just cannot be jumping up against the wall/fence, I mean up onto the wall/fence.
say no to it
About to be sold, or given up.
To make a mistake
The shot glass may shatter if you throw it against the wall. The opposition had him up against the wall.